MS-DOS operating system


MS-DOS (short for Microsoft Disk Operating System) is the DOS-type operating system developed by Microsoft for IBM PC first, then for PC compatible. It is a system operating in real mode, single task and single user, and equipped by default with a command line interface. From the 1980s to the early 1990s, it was the most used system on PC compatible, before being gradually replaced by more advanced operating systems, including Windows. Its development is now stopped.

To launch the DOS window type Windows + r then write cmd in the window executed


The main DOS commands are:

CD: Change directory.

COPY: Copy files.

DEL: Delete a file.

DELTREE: Delete a directory.

DIR: Display the list of folders and files.

ECHO: Displays text on the screen. “@Echo off” at the start of the program will hide the result of the commands made (for a batch program for example).

EDIT: Edit a text or batch file.

FDISK: Create and display partitions.

FORMAT: Format a disc.

HELP: List the available commands and parameters.

KEYB: Change the keyboard type (KEYB US or KEYB FR)

MD: Create a directory.

TYPE: Display a text file.

XCOPY: Copy files and directories.

RD: Delete a directory.


It is also possible to display the help for a command by typing “help WantedCommand”.

Example: I want to display help for the CD command.

So I’m going to write: “help cd”.


Alice AUSTIN is studying Cisco Systems Engineering. He has passion with both hardware and software and writes articles and reviews for many IT websites.

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